Row drag

A priority list you sort by hand: grab the grip in the Task column and drop the task where it belongs. The table moves the row in your array (managed mode), scrolls automatically at the top and bottom edge and reports the drop – save the new order in onRowDragEnd. Mouse, touch and pen work the same (Pointer Events); Escape cancels. MIT-licensed, no dependencies.

const tableModel = TableFactory.createTableModel({
  rows: tasks,
  rowNumbersVisible: true,                       // "#" = the position
  columnDefs: [
    ColumnDef.create({ property: "title", headerLabel: "Task", rowDrag: task => !task.locked }),
    ColumnDef.create({ property: "owner", headerLabel: "Owner" }),
  ],
});
listener.onRowDragEnd = evt => {
  if (evt.moved) saveOrder(tasks);               // tasks has the new order
};

Several rows: select rows (click, Ctrl/⌘-click), then drag one of them – all selected rows move, in their order.
Keyboard: Ctrl+Alt+↑ / ↓ moves the focused task; screen readers hear “Row moved to position 7 of 200”. The buttons do the same (tableApi.triggerAction("MOVE_ROW_UP")) – an alternative without dragging.
Sorted or filtered: the table does not move rows of a sorted or filtered view – the grips are dimmed. With rowDragOptions: { managed: false } you get the events anyway and decide yourself.
Trees: drop on the upper or lower quarter of a row = sibling, on the middle = child.

Docs: instructions.md 6.16 · API: GeRowDragEvent, TableApi.moveRows.